WAbiogenesis
WArchean life in the Barberton Greenstone Belt
WAstrobiology
WCAESAR (spacecraft)
WChirality
WChirality (chemistry)
WCoacervate
WCollodictyon
WCreationism
WDarwinian threshold
WFig Tree Formation
WGreat Oxidation Event
WHemolithin
WHypercycle (chemistry)
WIncomplete Nature
WJeewanu
WLast universal common ancestor
WMiller–Urey experiment
WStanley Miller
WMoodies Group
WMurchison meteorite
WNeocatastrophism
WOnverwacht Group
WLeslie Orgel
WPAH world hypothesis
WPanspermia
WPeptide nucleic acid
WPhosphorimidazolide
WPolycyclic aromatic hydrocarbon
WProtocell
WRare Earth hypothesis
WReverse Krebs cycle
WRNA world
WSpontaneous generation
WTanpopo (mission)
WThioester
WTholin
WThe Vital Question
WWarrawoona Group